REPAIRS TO MOTORISED ROLLING SHUTTERS AND CONNECTED WORKS AT CVRDE AVADI

Material & labour for servicing and maintenance of motarized rolling shutter of any capacity and size installed at various locations in Technical area CVRDE Avadi comprises the servicing the motor, Gear box, limit switches, and associated works including oiling and greasing for smooth functioning and testing complete. Note: (i) Quoted rate is deemed to be inclusive of taking down old unserviceable parts and refixing the new items/parts including minor additional/alteration works required at site and minor consumables like oil, grease, Bolts and Nuts etc required to made shutter functional. (ii) Contractor is responsible for making the shutters serviceable after receipt of complaints from stack holders. (iii) The repair/maintenance work should be carried out through OEM/reputed manufacturer or authorized dealer etc.

Dismantling the induction motor of capacity up to 2.0 HP, 3 phase, removing the old burnt out copper winding, cleaning the slots, and rewinding the motor with super enameled copper wire of suitable gauge, varnishing, replacement of old bearings, bushes / sleeves etc, painting with a coat of synthetic enamel paint over a coat red oxide primer and refixing the motor in same position and testing after completion all as directed by Engr in charge.

Dismantling the induction motor of capacity 3.0 HP, 3 phase, removing the old burnt out copper winding, cleaning the slots, and rewinding the motor with super enameled copper wire of suitable gauge, varnishing, replacement of old bearings, bushes / sleeves etc, painting with a coat of synthetic enamel paint over a coat red oxide primer and refixing the motor in same position and testing after completion all as directed by Engr in charge.

Taking down old unserviceable DOL starter from its position after disconnection of all electrical connections and supply and fix, connect and testing of DOL Starter suitable to operate motarized rolling shutter of capacity upto 3.00 HP motor incl connection both end with suitable size copper lugs etc complete all as specified and as directed.

Material & labour for preparation of surface by scrapping / cleaning and applying two coats of synthetic enamel paint on surface of Electric driven motor and Gear capacity up to 3.00 HP all as specified and as directed.

Material & labour for Wiring for circuit/ submain wiring alongwith earth wire with 3 runs of 4 sq. mm + 2 runs X 4 sq. mm earth wire of FRLS PVC insulated copper conductor, single core cable in surface/ recessed steel conduit not less than 25 mm dia complete all as specified and as directed. Note: 5 runs of 4.00 Sqmm FRLS PVC insulated copper cable and 1 Run of steel enameled conduit size 25 mm dia will be measured as one unit length.. including dismantling of old aluminium wiring complete.

Supplying and fixing 20 A, 240 V, SPN Industrial type socket outlet, with 2 pole and earth, metal enclosed plug top alongwith 20 A "C" curve, SP MCB, in sheet steel enclosure, on surface or in recess, with chained metal cover for the socket out let and complete with connections, testing and commissioning etc. as required complete all as specified and as directed.

Supplying and fixing 20 A, 415 V, TPN Industrial type socket outlet, with 4 pole and earth, metal enclosed plug top alongwith 20 A "C" curve, TP MCB, in sheet steel enclosure, on surface or in recess, with chained metal cover for the socket out let and complete with connections, testing and commissioning etc. as required complete all as specified and as directed.

Dismantling old unserviceable 2.00 HP electric driven motor with complete accessories. Design, Supply, install, testing and commissioning of Induction motor not less than 2.00 HP, 3 phase, 50Hz, 415 volts AC, connected by means of MS coupler to suitable speed reduction gear box (worm gear box) and further connected to bevel gear box by MS coupler of suitable length including suitable forward and reverse motor starter and limit switch. The AC induction motor and worm gear box shall be fixed on Suitable MS section frame work either floor mounted or wall mounted as per site condition including provision of manual operation by handle in case of power failure etc complete all as specified and directed by Engineer-in-Charge. Note: i) The electric drive / worm gear box shall be so designed / adjusted as to limit the speed of movement of the rolling shutter in either directions to not more than about 10 cm/sec. ii) The design of AC induction motor-2.00 HP and worm gear box shall be designed for lifting capacity not less than 1500 Kgs upto a height of 9.0 meters. iii) The quoted rated includes for AC induction motor-2HP, speed reduction gear box (worm gear box), Connecting rod, MS coupler (02 Nos), motor starter, provn of manual operation with handle, limit switch and necessary fixing arrangements and additional and Alteration works required and including masonry work for placing motor and gear box as per site condition alongwith MS frame work.

Dismantling old un-serviceable 3.00 HP electric driven motor with complete accessories. Design, Supply, install, testing and commissioning of Induction motor not less than 3.00 HP, 3 phase, 50Hz, 415 volts AC, connected by means of MS coupler to suitable speed reduction gear box (worm gear box) and further connected to bevel gear box by MS coupler of suitable length including suitable forward and reverse motor starter and limit switch. The AC induction motor and worm gear box shall be fixed on Suitable MS section frame work either floor mounted or wall mounted as per site condition including provision of manual operation by handle in case of power failure etc complete all as specified and directed by Engineer-in-Charge. Note: i) The electric drive / worm gear box shall be so designed / adjusted as to limit the speed of movement of the rolling shutter in either directions to not more than about 10 cm/sec. ii) The design of AC induction motor-3.00 HP and worm gear box shall be designed for lifting capacity not less than 1500 Kgs upto a height of 9.0 meters. ii) The quoted rated includes for AC induction motor-2.00 HP, speed reduction gear box (worm gear box), Connecting rod, MS coupler (02 Nos), motor starter, provn of manual operation with handle, limit switch and necessary fixing arrangements and additional and Alteration works required and including masonry work for placing motor and gear box as per site condition alongwith MS frame work.